Louisiana statistical areas

The U.S. State of Louisiana currently has 25 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated six combined statistical areas, ten metropolitan statistical areas, and nine micropolitan statistical areas in Louisiana.^[1] As of 2023, the largest of these is the New Orleans-Metairie-Slidell, LA-MS CSA, comprising the area around New Orleans in the southeast region of the state.

Background

The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico.^[2] These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau, planning organizations, and federal, state, and local government entities.

The OMB defines a core-based statistical area (commonly referred to as a CBSA) as the county or counties (or county-equivalents) surrounding at least one densely-settled core of at least 10,000 population,^[2] "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core".^[2] The OMB further divides core-based statistical areas based on population into metropolitan statistical areas (MSAs) for those with at least 50,000 and micropolitan statistical areas (μSAs) for those with 10,000 to 49,999 people.^[2]

The OMB defines a combined statistical area (CSA) as two or more adjacent core-based statistical areas where the employment interchange rate (% commuting from A to B plus % commuting from B to A) is at least 15%.^[2] The primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area.

Table

The 25 United States statistical areas and 64 parishes of the State of Louisiana^{[lower-alpha 1]}

Combined statistical area[1]	2023 population (est.)[3]	Core-based statistical area[1]	2023 population (est.)[3]	County	2023 population (est.)[3]
New Orleans–Metairie–Slidell, LA–MS CSA	1,340,591 1,282,613 (LA)	New Orleans–Metairie, LA MSA	962,165	Jefferson Parish, Louisiana	421,777
				Orleans Parish, Louisiana	364,136
				St. Charles Parish, Louisiana	50,620
				St. Bernard Parish, Louisiana	44,463
				St. John the Baptist Parish, Louisiana	39,592
				Plaquemines Parish, Louisiana	22,386
				St. James Parish, Louisiana	19,191
		Slidell–Mandeville–Covington, LA MSA	275,583	St. Tammany Parish, Louisiana	275,583
		Picayune, MS μSA	57,978	Pearl River County, Mississippi	57,978
		Bogalusa, LA μSA	44,865	Washington Parish, Louisiana	44,865
Baton Rouge–Hammond, LA CSA	1,011,725	Baton Rouge, LA MSA	873,661	East Baton Rouge Parish, Louisiana	448,467
				Livingston Parish, Louisiana	150,145
				Ascension Parish, Louisiana	131,632
				Iberville Parish, Louisiana	29,617
				West Baton Rouge Parish, Louisiana	28,266
				Assumption Parish, Louisiana	20,160
				Pointe Coupee Parish, Louisiana	20,000
				East Feliciana Parish, Louisiana	19,229
				West Feliciana Parish, Louisiana	15,371
				St. Helena Parish, Louisiana	10,774
		Hammond, LA MSA	138,064	Tangipahoa Parish, Louisiana	138,064
Lafayette–New Iberia–Opelousas, LA CSA	563,411	Lafayette, LA MSA	414,288	Lafayette Parish, Louisiana	249,750
				Vermilion Parish, Louisiana	56,992
				Acadia Parish, Louisiana	56,489
				St. Martin Parish, Louisiana	51,057
		Opelousas, LA μSA	81,464	St. Landry Parish, Louisiana	81,464
		New Iberia, LA μSA	67,659	Iberia Parish, Louisiana	67,659
Shreveport–Bossier City–Minden, LA CSA	418,533	Shreveport–Bossier City, LA MSA	383,295	Caddo Parish, Louisiana	226,386
				Bossier Parish, Louisiana	129,795
				De Soto Parish, Louisiana	27,114
		Minden, LA μSA	35,238	Webster Parish, Louisiana	35,238
Lake Charles–DeRidder, LA CSA	276,909	Lake Charles, LA MSA	240,082	Calcasieu Parish, Louisiana	203,761
				Jefferson Davis Parish, Louisiana	31,553
				Cameron Parish, Louisiana	4,768
		De Ridder, LA μSA	36,827	Beauregard Parish, Louisiana	36,827
Monroe–Ruston, LA CSA	269,847	Monroe, LA MSA	221,885	Ouachita Parish, Louisiana	157,568
				Morehouse Parish, Louisiana	23,955
				Union Parish, Louisiana	20,650
				Richland Parish, Louisiana	19,712
		Ruston, LA μSA	47,962	Lincoln Parish, Louisiana	47,962
none		Houma–Bayou Cane–Thibodaux, LA MSA	198,672	Terrebonne Parish, Louisiana	103,616
				Lafourche Parish, Louisiana	95,056
		Alexandria, LA MSA	148,171	Rapides Parish, Louisiana	126,260
				Grant Parish, Louisiana	21,911
		Morgan City, LA μSA	47,005	St. Mary Parish, Louisiana	47,005
		Natchitoches, LA μSA	36,291	Natchitoches Parish, Louisiana	36,291
		Natchez, MS-LA μSA	53,375 17,688 (LA)	Adams County, Mississippi	28,746
				Concordia Parish, Louisiana	17,688
				Jefferson County, Mississippi	6,941
		none		Vernon Parish, Louisiana	46,250
				Avoyelles Parish, Louisiana	38,408
				Evangeline Parish, Louisiana	31,754
				Allen Parish, Louisiana	22,112
				Sabine Parish, Louisiana	21,906
				Franklin Parish, Louisiana	19,285
				La Salle Parish, Louisiana	14,800
				Jackson Parish, Louisiana	14,746
				Claiborne Parish, Louisiana	13,670
				Winn Parish, Louisiana	13,216
				Bienville Parish, Louisiana	12,366
				Madison Parish, Louisiana	9,389
				West Carroll Parish, Louisiana	9,323
				Caldwell Parish, Louisiana	9,246
				Catahoula Parish, Louisiana	8,414
				Red River Parish, Louisiana	7,356
				East Carroll Parish, Louisiana	6,829
				Tensas Parish, Louisiana	3,764
State of Louisiana					4,573,749

Primary statistical areas

Primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area. Of the 25 statistical areas of Louisiana, 11 are PSAs comprising six combined statistical areas, two metropolitan statistical areas and three micropolitan statistical areas.

The 11 primary statistical areas of the State of Louisiana^{[lower-alpha 2]}

2020 rank	Primary statistical area[1]	Population
		2023 estimate[3]	Change	2020 Census[4]	Change	2010 Census[5]
1	New Orleans-Metairie-Slidell, LA-MS CSA (LA)	1,282,613	−2.63%	1,317,308	+6.49%	1,237,034
2	Baton Rouge–Hammond, LA CSA	1,011,725	+0.80%	1,003,726	+5.99%	947,002
3	Lafayette–New Iberia–Opelousas, LA CSA	563,411	+0.44%	560,924	+1.96%	550,134
4	Shreveport–Bossier City–Minden, LA CSA	418,533	−2.75%	430,373	−2.15%	439,811
5	Lake Charles–DeRidder, LA CSA	276,909	−4.91%	291,201	+9.12%	266,855
6	Monroe–Ruston, LA CSA	269,847	−2.07%	275,543	+1.35%	271,880
7	Houma–Bayou Cane–Thibodaux, LA MSA	198,672	−4.09%	207,137	−0.50%	208,178
8	Alexandria, LA MSA	148,171	−2.64%	152,192	−1.12%	153,922
9	Morgan City, LA μSA	47,055	−4.76%	49,406	−9.60%	54,650
10	Natchitoches, LA μSA	36,291	−3.26%	37,515	−5.18%	39,566
11	Natchez, MS-LA μSA (LA)	17,688	−5.35%	18,687	−10.25%	20,822
	New Orleans-Metairie-Slidell, LA-MS CSA	1,340,591	−2.39%	1,373,453	+6.23%	1,292,868
	Natchez, MS-LA μSA	53,375	−3.80%	55,485	−8.81%	60,845

See also

• Geography portal
• United States portal
• Louisiana portal

• Geography of Louisiana
  • Demographics of Louisiana

Notes

1. An out-of-state area and its population are displayed in green. An area that extends into more than one state is displayed in purple. A purple population number over a black population number show the total population versus the in-state population. The state's abbreviation is also shown next to the in-state total.
2. For PSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that PSA as well as the PSA's total population. Only the intrastate population is ranked.

References

1. Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (July 21, 2023). "OMB BULLETIN NO. 23-01" (PDF). Office of Management and Budget. Retrieved February 20, 2024.{{cite web}}: CS1 maint: multiple names: authors list (link)
2. "2020 Standards for Delineating Core Based Statistical Areas". Office of Management and Budget. July 16, 2021. Retrieved December 13, 2021.
3. "County Population Totals and Components of Change: 2020-2023". United States Census Bureau, Population Division. March 2023. Retrieved May 21, 2024.
4. "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS". U.S. Census Bureau. 2020. Retrieved May 21, 2024.
5. "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019". U.S. Census Bureau. 2019. Retrieved May 21, 2024.

External links

• Office of Management and Budget
• United States Census Bureau

31.0689°N 91.9968°W / 31.0689; -91.9968 (State of Louisiana)